Dont go as planned . But first, the nightline five. I got it again. When were having this much fun, why quit . And bounty has no quit in it, either. Its twotimes more absorbent than the leading ordinary brand. Watch how one sheet of bounty keeps working. While their two sheets just quit. Why use more when you can use less . Bounty, the noquit picker upper. And try bounty napkins. Number one in just 60 en la d the ready for you alerield the ready for you alert, the second his room is ready. You know what he brings . Any questions . Can i get an a, steve . Yes three as he brings his agame the ready for you alert, only at laquinta. Com good evening. As we come on the air, president obama announces that the u. S. Is in action in iraq again tonight. He addressed the countrys humanitarian catastrophe and what it would take to trigger military air strikes. To stop the advance honor bill, i directed our military to take targeted strikes against terrorist convoys should they move toward the city. We intend to stay vigilant and take action if the terrorist forces threaten our personnel or facilities anywhere in iraq. Attacks by an al qaedabased terrorist group have forced the country into crisis. And now, tens of thousands are fleeing for their lives. Many of those families stranded without resources, atop of mountains in blistering heat. American forces began humanitarian airdrops there earlier today, delivering critical aid, muchneeded food and water. As you just heard, president obama authorizing targeted military strikes if those terrorists continue their advance towards iraqs largest northern city. Stay with abc news for all the latest on this developing story. And gma will have a full report in the morning. And now, tonight, we turn our focus back home. If youve ever posted a negative review online, you may think youre safe writing from the comforts of your couch. But now, Business Owners are going to extraordinary lengths to clear their names. And it could cost you. It was the yelp review. There was a musty odor. It smelled bad. We kept the windows open the entire time we were there. Jimmy that l that led to yelp revenge. The guests fought back. There will be a 500 fine for each negative review that we post. The bride and groom overlooked this fine print on their contract. A 500 fine will be deducted from your deposit on your review placed on any internet site by anyone. A collective consumer fury ensued. And just like that, the star rating on yelp plummeted to a dismal 1 1 2. As users posted angry and facetious reviews about the business. One person calling it the worst hotel in history. I dont think im going to eat there anymore. Reporter over the last few years, the yelp review has taken on a life of its own. Immortalized in this actors read yelp video. Such a disappointment, considering i wanted to come here for a long time. Reporter all jokes aside, your yelp reviews have truly become makeorbreak for businesses nationwide. One bad review can really destroy your business. You can lose thousands of dollars. Reporter in fact, over 50 million businesses around the globe occupy a presence on yelp. A Harvard Business school study finding even a onestar rating increase on yelp translates to a sales increase between 5 and 9 . But watch out. That yelp review trashing a business could cost you. Some businesses arent just threatening fines. Some are even threatening lawsuits. These lawsuits are a form of bullying. Its a tactic to silence your critics. Reporter james owns the landing resort and spa in lake tahoe. He admits to reading Online Reviews of his hotel all the time. But he took issue with one comment he says went too far. In one case, we had an individual who made extremely derogatory ra derogatory remarks, about the manager, the food, myself individually. And we decided to file suit against this person for defamation. Reporter Court Records revealed the case was settled out of court with no money exchanged. What can you do to protect yourself . Have evidence to support whatever claim youre making. Whatever accusation youre making. And if youre going to say your food had a hair in it, put a picture with the food and the hair in it to support that. Reporter Business Owners say its the consumers writing the reviews who have all the power. But the hotel owner says its yelp itself that has the real power. He started to notice something strange about the way he says reviews were filtered on the yelp pages for his businesses. I began to notice one of our restaurants, a series of reviews. Those reviews were suddenly disappearing. Reporter he says that yelp was filtering out legitimate reviews and prioritizing reviews from yelp elite users. Every Service Business i know of will have bad reviews. Thats part of being in business. Its okay. Im not asking to remove any reviews. All im asking for and i demand, that people get to see all the reviews that are real, that are legitimate. Reporter hes now suing yelp in a California Court for misrepresenting how well the site filters reviews. But yelp stands behind their process. The reason consumers, 138 million of them come to our site each month, is because they trust the content. And the reason they trust the content is because we take steps to protect them from being misled from reviews that are either purchased by businesses or might be biased because they were solicited from a Business Owners friends or families. Reporter and regulators say, fake Online Reviews are a real problem. I will write a positive review of your product, website, blog or anything you like. Reporter kathy, a teenager from wisconsin, says shes written hundreds of phony Online Reviews for 4 bucks apiece. Do you have reviews nearby that you could read to us . I made the appointment over the phone. And the next day, they were working on my bathroom. Reporter have you ever renovated a bathroom . No. Im 17. Reporter do you feel any sense of guilt or anything . No because i feel like these people are going to pay somebody to write a review anyways. It might as well just be me. Reporter and what about that other claim . Made by some Business Owners that purchasing ads on yelp will improve your business ranking or feature more positive reviews . Just yesterday, a classaction lawsuit was filed on behalf of some yelp shareholders, alleging they were doing just that. Yelp says they have not been served with in suit. But say the allegations are without merit and will be vigorously contested. A handful of businesses claim that yelp is skewing the results to reflect advertising money. Youre saying thats not true . Absolutely not. Businesses purchase advertising on yelp and nothing more. Our Recommendation Software is designed to protect consumers. Reporter back in the quaint village of hudson, this story is the talk of the town. The way things are now, theres one piece of pie. And theres only so many slices in that pie. The slices are getting to be slivers. Reporter barry owns a b b around the corner. The firestorm has erupted. Whos going to win . I dont know. Whos going to win. But all the money and power is on the side of yelp. Hello. Reporter when our cameras approached the front desk at the union street guest house, the attendant wouldnt comment on any specifics. Right now, im just filling in for the owner, who is out. Reporter but earlier this week, the owner expressed embarrassment and regret in a statement. Saying, its response to negative reviews was intended as a joke. Now, realizing it was made in poor taste and not at all funny. But contrary to what some Business Owners may think turns out negative reviews are the exception, not the rule. I think the biggest misperception about yelp is its a site where people go to complain or whine. In fact, 80 of all the reviews on yelp are three stars or more. And thats because most peoples experiences with Small Businesses are positive. And thats really what comes through on yelp. Next, why are people with day jobs fighting in a medieval combat tournament . [ terri ] my antidepressant worked hard to help with my depression. But sometimes, i still struggled to get going, even get through the day. So i was honest with my doctor. I told him id been feeling stuck for a long time. He said that for some people, an antidepressant alone only helps so much and suggested we add Abilify Aripiprazole . He said that by taking both, some people had symptom improvement as early as 1 to 2 weeks. I wish id talked to my doctor sooner. [ female announcer ] abilify is not for everyone. Call your doctor if your depression worsens or you have unusual changes in behavior, or thoughts of suicide. Antidepressants can increase these in children, teens and young adults. Elderly dementia patients taking abilify have an increased risk of death or stroke. Call your doctor if you have high fever, stiff muscles and confusion to address a possible lifethreatening condition. Or if you have uncontrollable muscle movements, as these could become permanent. High blood sugar has been reported with abilify and medicines like it and in extreme cases can lead to coma or death. Other risks include increased cholesterol, weight gain, decreases in white blood cells, which can be serious, dizziness on standing, seizures, trouble swallowing and impaired judgment or motor skills. [ terri ] since adding abilify, i feel better. Abilify and my antidepressant make a pretty good team. [ female announcer ] ask your doctor about a free trial of abilify and go to addabilify. Com. Why let erectile dysfunction get in your way . Talk to your doctor about viagra. Ask if your heart is healthy enough for sex. Do not take viagra if you take nitrates for chest pain. It may cause an unsafe drop in blood pressure. Side effects include headache, flushing, upset stomach, and abnormal vision. To avoid long term injury, seek immediate medical help for an erection lasting more than four hours. Stop taking viagra and call your doctor right away if you experience a sudden decrease or loss in vision or hearing. This is the age of taking action. Viagra. Talk to your doctor. If your doctor decides viagra is right for you, you can fill your prescription at your pharmacy. Or, check out viagra home delivery, a convenient place to fill your prescription online and have it shipped at no additional cost straight to your door. Viagra home delivery. Get started at viagra. Com. Meeting the usa knights can feel like a trip back in time. The modernday warriors sport oldfashioned gear to fight enemies. But to join team usa, you have to fight for a spot. And the competition is fierce. Tonight, were storming the battlefield with a soldier who is a first of her kind. Heres abcs alex perez. Reporter on this battlefield in spain, the weapons are real. Men are knights. Instead of cheering from the ramparts, women are competing for the very first time. Its the axwielding, bonecrushing part of medieval combat. The usa knights, americas team, fighting for gold at the world championships. We few who kneel in the dust have traveled far for this singular task. May we be great. Or may we be not. Use your strengths and your weaknesses. Individual tactics. What do i do . How do i knock somebody to the ground . Reporter nightline was granted unprecedented access to the team, following them for five months as they prepared to take on the world. Once you step outside the borders of this country, you are the United States team. Reporter leading this army, team captain andre, his military background infects the team with the courtly values of a bygone era. You are the National Team of the United States of america. Thats something to be proud of. Reporter theres 70 asperants. This is your olympics . Yes. Reporter you get emotional. I cry at every patriotic song. It gets to me. Reporter dont mistake her pride for weakness. Amy wears real armor and carries steel weapons designed to kill. These are two of the most preferred weapons when youre out there to do some damage. This will bury itself through your flesh. It stops at the bone. You hear a little noise. Reporter do you think about someone could get seriously hurt when youre out there . Of course. We do everything we can. All the edges on these weapons have to be at least two millimeters wide. The tips have to be rounded out. Theres no sharp edges that can puncture. Reporter the steel armor can cost up to 10,000 and weigh 80 pounds. But anything can happen in the heat of battle. Ive seen individuals with their helmet caved in along with their head. Ive seen fingers cut off. Guys take their helmet off and theres no teeth left. Reporter at the last tournament, amy suffered a bruised hip and a scary concussion, fighting lisa, her most experienced rival. Before their rematch, women are fighting together. An Exhausting Group battle called a melee. Its the best of three, long, burning rounds. Where the winner is the team with the last person standing. Its a big ball of adrenaline and blood lust. Something that most women dont get the chance to experience. Its like chocolate, sex, candy, everything all rolled up into one. Reporter for amy, this is just the latest challenge on her own personal odyssey. This is what she looked like seven years ago. I was over 450 pounds. I stopped weighing myself because i couldnt find a scale heavy enough for me. Reporter where are you now . How did you get there . I had a gastric bypass seven years ago. I can eat two ounces at a time, which is hard for this sport. I run out of fuel much quicker than any man here. Reporter but the sport has helped you to continue to lose weight. Yes. When they announced that women were going to possibly be able to fight, i started training two hours a night. Reporter what has it done for your weight loss . I dropped 40 pounds just by doing this. Reporter damian is another unlikely combatant. A colombian and harvard grad, damian suffered a broken back in army training. I was a measure for a year. On pain pills and walking with a cane. It seemed like my life was never going to get back together. Reporter after lengthy rehab, you would think he would be more cautious. But hes inexpublicibly drawn to the carnage. We have doctors, college students. Guys that work at gas stations. This is truly the United States team. Reporter nearly 800 spectators crowd the Illinois State fairground cattle yard to cheer on damian and the others, broken up into melee teams, as they battle for their spot on the National Team. Damians team, the first swords, marches through the competition. And makes it to the finals. Now, its us against shocking eagles. Reporter they face off against a team stacked with the best fighters. Now, its time for the finals. Our friend, damian. His team made it. They have the red outfits with the white swords. Theyre about to head out to the battlefield. This match is on. Reporter first swords lose round one. And in the second, damian gets cornered. Big hits in there. I was like, man. And into the back. If i didnt have my armor, all of my bones would be broken. Reporter his gritty display wins him a spot on the team. Then, amy faces off against lisa. Lisa is a technical fighter. Reporter the same opponent who gave her a concussion. And she struggles to hold off the more experienced fighter. Battered, but not broken, amy is gracious in defeat. And before calling the winner, a huge surprise. She didnt win in tournament. But im making you the captain of the melee team. You will be leading this team in spain. Congratulations. It was an absolute total shock. I had never been so proud of anything in my life. May we live these next few days like men and women of knightly spirits. Reporter emotions still raw a month later, as proud knights take the battlefield in spain. Amy, damian, and the usa knights turn away challenge after challenge. Cheered on by a crowd of 10,000, and many more watching on spanish tv. This journey teaches very well that there are some that are stronger than us. Reporter and one by one, they capture the trophies. Braver than us. More skilled than us. Reporter theyve all battled through so much to get it. But none will be more worthy than us. Reporter for nightline, im alex perez, in springfield, illinois. Next, get ready to go into the storm. Could Something Like this really happen . And how would you even prepare . If youre suffering from constipation or irregularity, powders may take days to work. For gentle overnight relief, try dulcolax laxative tablets. Ducolax provides gentle overnight relief, unlike miralax that can take up to 3 days. Dulcolax, for relief you can count on. Dulcolax, or relief you can count on. Fill their bowl with the meaty tastes theyre looking for, with friskies grillers. Tender meaty pieces and crunchy bites. In delicious chicken, beef, turkey, and garden veggie flavors. Friskies grillers. Hey ca sure. You bet thats our new interactive speaker wall. sup . Thinks its a speaking wall. This can even dim your lights. Your 3dprinted girlfriend will love that. Real mature. There you go. A laser drone for cats. I wish i had lasers. I dont. Pew pew pew. The new radioshack is finally here. The store of your past is now the store of your future. Come see one of our remodeled stores and get a free portable power charger with a 15 purchase. It is summer storm season. And hollywood is taking full advantage of that severe weather. Natural disasters are actually great for the box office. But how closely do these movies really mirror reality . Ive been in storms all my life. And this one is bigger than any storm that has ever been. Reporter into the storm hits box offices tomorrow, depicting a devastating category 6 tornado. Winds higher than anything ever recorded. This movie is just kind of roughly based on different storms that have hit the United States throughout history. Ultimately culminating in an ef6 tornado, which has not ever hit the United States. But in this movie, its what would happen if one did. Reporter well, our chief meteorologist says not so fast. Category 6 or an ef6. These are something we dont have in science. Reporter why does it seem as though storms are getting more severe . A big part of it seeming like there are more severe storms is how we see them. We have technology. We have cell phones. We share every hailstone and every tornado. And everybody sees it. Reporter but nothing quite so dramatic as a wet storm going up in flames. When you have a tornado, all that condensation, water and fire dont go together. That would not be scientifically possible. Reporter for now, feel free to enjoy the notsonatural visual spectacle. Special effects were awesome. Its all real natural phenomenon that is horrific, devastating and yet beautiful all at the same time. Reporter you can relax and grab the popcorn. Thank you for watching abc news. As always, were online 24 7 at abcnews. Com. Good night, america